Yeah, there's no special place for fuel to leak from.
Could be a cracked fuel line, so check the entire length.
Like jingjing said, could be your fuel tank rusted out and there's a leak in there somewhere.
It you can't find a leak, your car may be running excessively rich.
Usually, this is a bad O2 sensor, but it could also be leaking fuel injectors, dirty (or defective) IAC valve or just the general tune-up.
Does your car still drive normally?
Any loss of power?
Any recent drastic change in your gas mileage?
Does it always smell like gas or just sometimes (cold, warm, start-up, acceleration, idle...)
94 B13X | UR underdrive pulley
PaceSetter header | K&N filter
Rear drum to Maxima disc conversion